Search found 1710 matches

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by kalvado
Mon May 06, 2019 8:47 pm
Forum: Civil Aviation
Topic: Boeing 737MAX Grounded Worldwide Q2 2019
Replies: 3081
Views: 305862

Re: Boeing 737MAX Grounded Worldwide Q2 2019

But your next conclusion - "that means they wanted to continue" - is IMHO not as logical as you want to believe. And I don't think you would come to that conclusion if US or EU crew did that. If a US or EU crew had made the same decision, I would feel the same way. Despite the stick shake...

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by kalvado
Mon May 06, 2019 8:28 pm
Forum: Civil Aviation
Topic: Boeing 737MAX Grounded Worldwide Q2 2019
Replies: 3081
Views: 305862

Re: Boeing 737MAX Grounded Worldwide Q2 2019

Please don't these words in my mouth. I never said this or even implied what you are saying. I resent this statement very much!! My apologies - to some extent. I did not imply that you said anything like that. However, this is basically the message with "third world pilots" tune playing i...

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by kalvado
Mon May 06, 2019 8:10 pm
Forum: Civil Aviation
Topic: Boeing 737MAX Grounded Worldwide Q2 2019
Replies: 3081
Views: 305862

Re: Boeing 737MAX Grounded Worldwide Q2 2019

@OldAeroGuy has a reasonably solid argument that flaps shouldn't be raised in that situation, and doing so means crew was planning on further unreasonable things like completing the flight as scheduled.. I find this argument to be at least 50/50 convincing, though last statement is strongly spiced ...

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by kalvado
Mon May 06, 2019 7:30 pm
Forum: Civil Aviation
Topic: Boeing 737MAX Grounded Worldwide Q2 2019
Replies: 3081
Views: 305862

Re: Boeing 737MAX Grounded Worldwide Q2 2019

With continuous stick shaker, all the MAX crews elected to continue their missions with continuous stick shaker. This is wrong. The crews of both crashed MAXes wanted to return. E.g. here is just one source . Why do you push wrong information? The crew that decided to continue to destination - desp...

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by kalvado
Mon May 06, 2019 11:55 am
Forum: Civil Aviation
Topic: Something wrong with Boeing's safety culture?
Replies: 270
Views: 30092

Re: Something wrong with Boeing's safety culture?

honestly speaking, I don't see problems one wouldn't expect to find in a huge company. They argued with FAA about required improvements? Yeah, those are good ideas - but NG is damn safe, so the problem is only that bad. ARs are pressured by the management? You can assume that the second you learn ab...

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by kalvado
Sun May 05, 2019 11:53 am
Forum: Technical/Operations
Topic: How reduced AoA increase drag?
Replies: 8
Views: 1192

Re: How reduced AoA increase drag?

No I dont think that reduced AoA cause higher drag, I am confused how reduced AoA can increase drag in explanation how wingtip vortices (induced drag topic) change (reduced )relative airflow on wing. qoute from text: " The wing tip vortices produce a swirling flow of air behind the wing which ...

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by kalvado
Sun May 05, 2019 10:38 am
Forum: Civil Aviation
Topic: Boeing 737MAX Grounded Worldwide Q2 2019
Replies: 3081
Views: 305862

Re: Boeing 737MAX Grounded Worldwide Q2 2019

Your answer is training. My answer is - pray hard. Untrained, non-envisioned or unrecognized failure is a crash by default. Training didn't help TWA880, JAL123, AF4590 and many other flights. Moreover, training COULD NOT help those. There is a very narrow range of cases where unpredicted failure co...

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by kalvado
Sun May 05, 2019 3:52 am
Forum: Civil Aviation
Topic: Boeing 737MAX Grounded Worldwide Q2 2019
Replies: 3081
Views: 305862

Re: Boeing 737MAX Grounded Worldwide Q2 2019

My solution - based on other high profile failures in technology industries - is holding companies liable for following development standards as declared, i.e. for the verifiable procedure rather than somewhat unpredictable result; and minimizing liability considerations in the incident and acciden...

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by kalvado
Sun May 05, 2019 3:25 am
Forum: Civil Aviation
Topic: Boeing 737MAX Grounded Worldwide Q2 2019
Replies: 3081
Views: 305862

Re: Boeing 737MAX Grounded Worldwide Q2 2019

That's not a solution. I guess it needs to be asked again - what's your solution? My solution - based on other high profile failures in technology industries - is holding companies liable for following development standards as declared, i.e. for the verifiable procedure rather than somewhat unpredi...

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by kalvado
Sun May 05, 2019 3:14 am
Forum: Civil Aviation
Topic: Boeing 737MAX Grounded Worldwide Q2 2019
Replies: 3081
Views: 305862

Re: Boeing 737MAX Grounded Worldwide Q2 2019

To begin with - not denying such mistakes as Boeing is doing. That's not a solution. I guess it needs to be asked again - what's your solution? My solution - based on other high profile failures in technology industries - is holding companies liable for following development standards as declared, ...

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by kalvado
Sun May 05, 2019 2:47 am
Forum: Civil Aviation
Topic: Boeing 737MAX Grounded Worldwide Q2 2019
Replies: 3081
Views: 305862

Re: Boeing 737MAX Grounded Worldwide Q2 2019

MSPNWA wrote:
kalvado wrote:
Somehow same types of pilots fly A320, 7373NG, 777, 787 without significant issues. So there has to be something different here, you know.


Again, what's your solution when engineers make mistakes?

To begin with - not denying such mistakes as Boeing is doing.

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by kalvado
Sun May 05, 2019 2:43 am
Forum: Civil Aviation
Topic: Miami Air 737 runway overrun into river at NAS Jacksonville
Replies: 247
Views: 41349

Re: Miami Air 737 runway overrun into river at NAS Jacksonville

There is a very simple reason why the long-bodied 737s are more prone to overruns, and that's because of very high approach and landing speeds. It's not unusual to see a Vref in the 150-160 knot range, some 30-40 knots above stall speed, in order to have a flat approach to avoid tail strikes. Compa...

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by kalvado
Sun May 05, 2019 1:54 am
Forum: Civil Aviation
Topic: Boeing 737MAX Grounded Worldwide Q2 2019
Replies: 3081
Views: 305862

Re: Boeing 737MAX Grounded Worldwide Q2 2019

Good point, I forgot about the column cutout switch. You guys are focusing on microproblems of design. Look at the bigger picture: if your opinion about training being (in)sufficient can be changed by a function of a switch which isn't even directly accessible to a pilot - you cannot build any proa...

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by kalvado
Sun May 05, 2019 1:40 am
Forum: Civil Aviation
Topic: Boeing 737MAX Grounded Worldwide Q2 2019
Replies: 3081
Views: 305862

Re: Boeing 737MAX Grounded Worldwide Q2 2019

So what standard of training would be sufficient for you? No training on Non-normal procedures after the initial type rating? The perfect airplane can be designed so who needs pilots? There are simple numbers, which tell that cost-efficient improvement must cost 10-20 cents per ticket. Anything abo...

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by kalvado
Sun May 05, 2019 1:29 am
Forum: Civil Aviation
Topic: Boeing 737MAX Grounded Worldwide Q2 2019
Replies: 3081
Views: 305862

Re: Boeing 737MAX Grounded Worldwide Q2 2019

Since there are firm indices that insistence of the AMERICAN airlines on no sim training was factor in BOEING'S decision to minimize training requirements of 737MAX the issue with training is obviously not only "worldwide", it sadly is at home in USA. That "3rd world" pilots and...

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by kalvado
Sun May 05, 2019 12:53 am
Forum: Civil Aviation
Topic: Boeing 737MAX Grounded Worldwide Q2 2019
Replies: 3081
Views: 305862

Re: Boeing 737MAX Grounded Worldwide Q2 2019

This isn't going to be a popular opinion, but based on the information that's been released so far, I think the crews of both flights were at least as much at fault as Boeing. I had originally considered the situations they were presented as extremely challenging and unfortunate. However, I'm havin...

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by kalvado
Sun May 05, 2019 12:49 am
Forum: Civil Aviation
Topic: Boeing 737MAX Grounded Worldwide Q2 2019
Replies: 3081
Views: 305862

Re: Boeing 737MAX Grounded Worldwide Q2 2019

This isn't going to be a popular opinion, but based on the information that's been released so far, I think the crews of both flights were at least as much at fault as Boeing. I had originally considered the situations they were presented as extremely challenging and unfortunate. However, I'm havin...

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by kalvado
Sun May 05, 2019 12:36 am
Forum: Civil Aviation
Topic: Boeing 737MAX Grounded Worldwide Q2 2019
Replies: 3081
Views: 305862

Re: Boeing 737MAX Grounded Worldwide Q2 2019

No - I have always held lots of blame to go around - If I've had an Agenda it's to get people to realize that training has been lacking Worldwide and needs to be looked at - along with Boeing and the FAA training seems as efficient as it can be. It is hard, if at all possible, to train instant resp...

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by kalvado
Sat May 04, 2019 11:44 pm
Forum: Civil Aviation
Topic: Miami Air 737 runway overrun into river at NAS Jacksonville
Replies: 247
Views: 41349

Re: Miami Air 737 runway overrun into river at NAS Jacksonville

Because there's more 737s currently flying than any other aircraft? There are more A320 family flying than 737s Any solid statistics on that? I would think that would be hard to track, but there has been more 737s produced since a320 family introduction. I can image the 737 max debacle though might...

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by kalvado
Sat May 04, 2019 11:06 pm
Forum: Civil Aviation
Topic: Miami Air 737 runway overrun into river at NAS Jacksonville
Replies: 247
Views: 41349

Re: Miami Air 737 runway overrun into river at NAS Jacksonville

Jouhou wrote:
bgm wrote:
Yet another 737 runway overrun. Why do these incidents always seem to be on that aircraft? Higher approach speeds vs other aircraft?


Because there's more 737s currently flying than any other aircraft?

There are more A320 family flying than 737s

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by kalvado
Sat May 04, 2019 10:58 pm
Forum: Civil Aviation
Topic: Boeing 737MAX Grounded Worldwide Q2 2019
Replies: 3081
Views: 305862

Re: Boeing 737MAX Grounded Worldwide Q2 2019

No - I have always held lots of blame to go around - If I've had an Agenda it's to get people to realize that training has been lacking Worldwide and needs to be looked at - along with Boeing and the FAA training seems as efficient as it can be. It is hard, if at all possible, to train instant resp...

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by kalvado
Sat May 04, 2019 12:56 pm
Forum: Civil Aviation
Topic: Miami Air 737 runway overrun into river at NAS Jacksonville
Replies: 247
Views: 41349

Re: Miami Air 737 runway overrun into river at NAS Jacksonville

I see 7008 NG in service, and 865 older generation. Airbus got 1811 of 321, 4774 of 320, 2329 of 319 and 57 of 318, for a total of 8971 So it looks there are slightly more airbus narrowbodies flying. So what do you think 737 got more accidents? A study was done a few years ago: The 737NG has 0.27 h...

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by kalvado
Sat May 04, 2019 12:53 pm
Forum: Civil Aviation
Topic: Miami Air 737 runway overrun into river at NAS Jacksonville
Replies: 247
Views: 41349

Re: Miami Air 737 runway overrun into river at NAS Jacksonville

It’s also the most popular airplane in the world, so wouldn’t that mean that most overruns would have a higher likelihood of being a 737? The A320 series is also very popular but you don’t see anywhere near the number of runway overruns as the 737, specifically the NG. True, though I think part of ...

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by kalvado
Sat May 04, 2019 10:11 am
Forum: Civil Aviation
Topic: Miami Air 737 runway overrun into river at NAS Jacksonville
Replies: 247
Views: 41349

Re: Miami Air 737 runway overrun into river at NAS Jacksonville

Yet another 737 runway overrun. Why do these incidents always seem to be on that aircraft? Higher approach speeds vs other aircraft? Could be that the sheer number of 737’s in service increase the odds of an incident. Can’t really say the aircraft is at fault until all the facts are in. I see 7008 ...

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by kalvado
Thu May 02, 2019 8:24 pm
Forum: Civil Aviation
Topic: Boeing 737MAX Grounded Worldwide Q2 2019
Replies: 3081
Views: 305862

Re: Boeing 737MAX Grounded Worldwide Q2 2019

Except we don’t do we? The road casualty rate has plummeted in modern times, levelling off at what is probably near the minimum possible without greater automation. This has been made possible by massive public campaigns (seatbelts, drinking and driving etc) and ever tighter legislation on safety f...

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by kalvado
Thu May 02, 2019 8:18 pm
Forum: Civil Aviation
Topic: Boeing 737MAX Grounded Worldwide Q2 2019
Replies: 3081
Views: 305862

Re: Boeing 737MAX Grounded Worldwide Q2 2019

"These pitch and power settings provide a simple reference setting for the crew to use for a short period of time while the initial steps of the checklist are accomplished. These settings do not ensure a level flight or constant airspeed at any particular altitude/airspeed/weight combination. ...

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by kalvado
Thu May 02, 2019 8:02 pm
Forum: Civil Aviation
Topic: Boeing 737MAX Grounded Worldwide Q2 2019
Replies: 3081
Views: 305862

Re: Boeing 737MAX Grounded Worldwide Q2 2019

People aren't disagreeing on the proper procedures they should have taken - as we learn more about the accident we realize how many things they missed on ET302. Some realize that - as we learn more about the accident - the Boeing instructions were not very clear, ambigious at best, or just poor at ...

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by kalvado
Thu May 02, 2019 7:52 pm
Forum: Civil Aviation
Topic: Boeing 737MAX Grounded Worldwide Q2 2019
Replies: 3081
Views: 305862

Re: Boeing 737MAX Grounded Worldwide Q2 2019

"These pitch and power settings provide a simple reference setting for the crew to use for a short period of time while the initial steps of the checklist are accomplished. These settings do not ensure a level flight or constant airspeed at any particular altitude/airspeed/weight combination. ...

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by kalvado
Thu May 02, 2019 7:01 pm
Forum: Civil Aviation
Topic: Boeing 737MAX Grounded Worldwide Q2 2019
Replies: 3081
Views: 305862

Re: Boeing 737MAX Grounded Worldwide Q2 2019

I am sorry, but you're cheating by making damning assumptions before analysis. Lets try talking without prejudice. Regardless of further plans, ET302 crew would need to (1)climb out, (2)stabilize flight, (3)contact regional ATC. Whether vectors back to airport or to destination will be requested is...

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by kalvado
Thu May 02, 2019 6:28 pm
Forum: Civil Aviation
Topic: Boeing 737MAX Grounded Worldwide Q2 2019
Replies: 3081
Views: 305862

Re: Boeing 737MAX Grounded Worldwide Q2 2019

You may refuse the walk, but I think it would be an interesting one for both of us - if you drop prejudice. Again, no MCAS yet, just a normal takeoff roll, V1... Rotate.... posi Stick shaker, airspeed disagree. Captain? Your immediate action? What I hear - reduce thrust, control pitch, fly nice and...

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by kalvado
Thu May 02, 2019 5:19 pm
Forum: Civil Aviation
Topic: Boeing 737MAX Grounded Worldwide Q2 2019
Replies: 3081
Views: 305862

Re: Boeing 737MAX Grounded Worldwide Q2 2019

I don't think that the goal was to make the MAX=NG. Clearly the goal was to make the Max better than the NG. A subsidiary goal was to make the Max fly and handle like the NG. There is nothing wrong with this. The problem was in the execution. They definitely wanted to make it more efficient, the co...

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by kalvado
Thu May 02, 2019 4:09 pm
Forum: Civil Aviation
Topic: Boeing 737MAX Grounded Worldwide Q2 2019
Replies: 3081
Views: 305862

Re: Boeing 737MAX Grounded Worldwide Q2 2019

I am sorry, but you're cheating by making damning assumptions before analysis. Lets try talking without prejudice. Regardless of further plans, ET302 crew would need to (1)climb out, (2)stabilize flight, (3)contact regional ATC. Whether vectors back to airport or to destination will be requested is...

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by kalvado
Thu May 02, 2019 3:36 pm
Forum: Civil Aviation
Topic: Boeing 737MAX Grounded Worldwide Q2 2019
Replies: 3081
Views: 305862

Re: Boeing 737MAX Grounded Worldwide Q2 2019

So here comes "airmanship", aka deviation from the standard procedure - they need to maintain climb of at least - whatever it is for 737 with engine out, 1 or 2 degrees? That is not what airspeed disagree SOP would provide. Which means some of the following must be done to avoid CFIT: red...

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by kalvado
Thu May 02, 2019 2:53 pm
Forum: Civil Aviation
Topic: Boeing 737MAX Grounded Worldwide Q2 2019
Replies: 3081
Views: 305862

Re: Boeing 737MAX Grounded Worldwide Q2 2019

I work in chemical plant safety, as a point of reference. Failures modes should be predictable (it was not predicted) Failures should be notified (they turned them off) Training should be provided to deal with the results (not deemed necessary) Boeing should work on fixing the problem, check there ...

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by kalvado
Thu May 02, 2019 2:41 pm
Forum: Civil Aviation
Topic: Boeing 737MAX Grounded Worldwide Q2 2019
Replies: 3081
Views: 305862

Re: Boeing 737MAX Grounded Worldwide Q2 2019

So here comes "airmanship", aka deviation from the standard procedure - they need to maintain climb of at least - whatever it is for 737 with engine out, 1 or 2 degrees? That is not what airspeed disagree SOP would provide. Which means some of the following must be done to avoid CFIT: red...

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by kalvado
Thu May 02, 2019 12:44 pm
Forum: Civil Aviation
Topic: Boeing 737MAX Grounded Worldwide Q2 2019
Replies: 3081
Views: 305862

Re: Boeing 737MAX Grounded Worldwide Q2 2019

Yes - but it was an Airbus 330 with a FBW system where it tried to put the plane in the ground. ADIRU fault generating unbelievable, still unexplained, repetitive spike data without triggering any integrity test + FC algorithm design error that was never catch before because nobody was able to thin...

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by kalvado
Thu May 02, 2019 10:41 am
Forum: Civil Aviation
Topic: Boeing 737MAX Grounded Worldwide Q2 2019
Replies: 3081
Views: 305862

Re: Boeing 737MAX Grounded Worldwide Q2 2019

I suspect Crew training standards were improving for quite some time on that graph along with more reliable safe designs. Crew training standards just seem to have taken a nosedive in the last 20 years. You are still not answering the Question - Do you believe existing crew training standards are s...

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by kalvado
Thu May 02, 2019 10:29 am
Forum: Civil Aviation
Topic: Boeing 737MAX Grounded Worldwide Q2 2019
Replies: 3081
Views: 305862

Re: Boeing 737MAX Grounded Worldwide Q2 2019

Well, we heard that. Can you calculate climb profile with gear and flaps out for that day's temperature ADD altitude and given terrain around? I still want to see how that would work. I've worked this out for you previously. Why do you keep bringing it up? 1) Climb profiles to avoid obstacles and c...

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by kalvado
Wed May 01, 2019 9:09 pm
Forum: Civil Aviation
Topic: Boeing 737MAX Grounded Worldwide Q2 2019
Replies: 3081
Views: 305862

Re: Boeing 737MAX Grounded Worldwide Q2 2019

I don't know if someone has done the exercise before, but imagine that the A320 had a similar problem with the neo (new engine option) and that the FBW couldn't be changed, so Airbus added something a lot like MCAS. What are the chances a similar accident could happen ? From what I know there are t...

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by kalvado
Wed May 01, 2019 6:00 pm
Forum: Civil Aviation
Topic: Boeing 737MAX Grounded Worldwide Q2 2019
Replies: 3081
Views: 305862

Re: Boeing 737MAX Grounded Worldwide Q2 2019

Except we don’t do we? The road casualty rate has plummeted in modern times, levelling off at what is probably near the minimum possible without greater automation. This has been made possible by massive public campaigns (seatbelts, drinking and driving etc) and ever tighter legislation on safety f...

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by kalvado
Wed May 01, 2019 5:58 pm
Forum: Civil Aviation
Topic: Boeing 737MAX Grounded Worldwide Q2 2019
Replies: 3081
Views: 305862

Re: Boeing 737MAX Grounded Worldwide Q2 2019

In hindsight given the existing state of Pilot training Boeing should have known better and not assumed that Pilots could handle a relatively simple Emergency (it's not as though the Rudder or Horizontal Tailplane fell off). But I don't think it rises to the state of Criminality. They made an assum...

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by kalvado
Wed May 01, 2019 5:02 pm
Forum: Civil Aviation
Topic: Boeing 737MAX Grounded Worldwide Q2 2019
Replies: 3081
Views: 305862

Re: Boeing 737MAX Grounded Worldwide Q2 2019

In hindsight given the existing state of Pilot training Boeing should have known better and not assumed that Pilots could handle a relatively simple Emergency (it's not as though the Rudder or Horizontal Tailplane fell off). But I don't think it rises to the state of Criminality. They made an assum...

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by kalvado
Wed May 01, 2019 4:43 pm
Forum: Civil Aviation
Topic: Boeing 737MAX Grounded Worldwide Q2 2019
Replies: 3081
Views: 305862

Re: Boeing 737MAX Grounded Worldwide Q2 2019

So what is your Standard of Pilot competency then? Should they have to be able to handle any Emergency situations at all? Standard for pilot competency - similar to competency of other critical industries - is that is emergency situation which was not specifically drilled failure rate is 1 in 1000 ...

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by kalvado
Wed May 01, 2019 3:29 pm
Forum: Civil Aviation
Topic: Boeing 737MAX Grounded Worldwide Q2 2019
Replies: 3081
Views: 305862

Re: Boeing 737MAX Grounded Worldwide Q2 2019

As I understand it, the symptoms of MCAS failure and runaway trim are pretty much identical. Also as I understand it, solution for both is to deactivate the automatic trim and manually trim. Additionally, as I understand it, although there was not specific simulator training for MCAS failure, there...

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by kalvado
Wed May 01, 2019 3:26 pm
Forum: Civil Aviation
Topic: Boeing 737MAX Grounded Worldwide Q2 2019
Replies: 3081
Views: 305862

Re: Boeing 737MAX Grounded Worldwide Q2 2019

I suspect Crew training standards were improving for quite some time on that graph along with more reliable safe designs. Crew training standards just seem to have taken a nosedive in the last 20 years. You are still not answering the Question - Do you believe existing crew training standards are s...

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by kalvado
Wed May 01, 2019 3:15 pm
Forum: Civil Aviation
Topic: Boeing 737MAX Grounded Worldwide Q2 2019
Replies: 3081
Views: 305862

Re: Boeing 737MAX Grounded Worldwide Q2 2019

I suspect Crew training standards were improving for quite some time on that graph along with more reliable safe designs. Crew training standards just seem to have taken a nosedive in the last 20 years. You are still not answering the Question - Do you believe existing crew training standards are s...

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by kalvado
Wed May 01, 2019 3:00 pm
Forum: Civil Aviation
Topic: Boeing 737MAX Grounded Worldwide Q2 2019
Replies: 3081
Views: 305862

Re: Boeing 737MAX Grounded Worldwide Q2 2019

I believe AVherald (Which has a fantastic reputation) a lot more than I believe the Airline who was possibly responsible for not training there pilots properly. Of course ET is going to say that - what do you expect them to publicly admit they never taught there pilots the proper procedures to deal...

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by kalvado
Wed May 01, 2019 2:35 pm
Forum: Civil Aviation
Topic: Boeing 737MAX Grounded Worldwide Q2 2019
Replies: 3081
Views: 305862

Re: Boeing 737MAX Grounded Worldwide Q2 2019

Hi Ray, How about debating my response. What Pilot competency standard should Airbus and Boeing have to design too? If Boeing is not lying they designed to the existing standard. The crew are allowed as a back up system in all modern designs by all Manufacturers. You either lower the standards or b...

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by kalvado
Wed May 01, 2019 2:21 pm
Forum: Civil Aviation
Topic: Boeing 737MAX Grounded Worldwide Q2 2019
Replies: 3081
Views: 305862

Re: Boeing 737MAX Grounded Worldwide Q2 2019

Hi Ray, How about debating my response. What Pilot competency standard should Airbus and Boeing have to design too? If Boeing is not lying they designed to the existing standard. The crew are allowed as a back up system in all modern designs by all Manufacturers. You either lower the standards or b...

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by kalvado
Wed May 01, 2019 12:06 pm
Forum: Civil Aviation
Topic: Boeing 737MAX Grounded Worldwide Q2 2019
Replies: 3081
Views: 305862

Re: Boeing 737MAX Grounded Worldwide Q2 2019

Oh wait, no. There is no excuse for over speed in a modern airliner. Lion Air, I give the pilots some credit as while they failed basic memory item(s), it was at least a novel situation presented to them by a dysfunctional airline failing to fix the issue. Ethiopia has no excuse. MCAS has nothing t...

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